Steam-turbine.



J. F. M.PATITZ.

STEAM TURBINE. APPLIOATION FILED 00T.19, 190s.

91 5,21 2. Patented Mar. 16, 1909. Fly?.

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` one form of turbine.

- Vone turbine' Wheel 'to the next one.

UNITED sTAfrEs PATE-NT onFicE.

JOHANN rainnnien MAX iuriiz, or MILWAUKEE, WISCONSIN, AssIeNoR To ,iLLIs- CHALMERS COMPANY, Ol? JERSEY.

MILWAUKEE, WISCONSIN, A CORPORATION OF NEW STEAM-TURBINE.

Speciicatpon of Letters Patent.

Patented March 16, 1909.

applicati@ sied october 19, 1903. Seriana 177,662'.

residing at Milwaukee, in the county of Milwaukee and. State. o'f Wisconsin', `have in,-

vented a new and useful Steam-Turbine, of

which the following is a speciiication.

My invention relates to steam turbines and its object is to provide means for re-heating or 'super-heating Vsteam within t'heturbine itself. j

` Figure 1 shows the invention a plied to Fig 2 shows t ie invention applied to a different form of turbine.

The economy attainedl by the use of supere, heated steam, especially in steam turbines, has long ,been recognized." If the superheating is done in a separate superheater, there will be `lossof heat by' radiation in transmitting the same to theturbine. Besides, more space is needed and the cost of the superheater is added to that ofthe plant. To avoid these disadvantages, I have de.-

vised a form of turbine wherein the superheating is done within the turbine Itself, thus avoiding all external losses.

Referring to Fig. 1, 1 denotes the casing of a steanrturbine. provided with the necessary steam passages and Wheel chambers. The

turbine wheels 2, are mounted to rotate in said casing, steam beingadmitted through the orifices 3, and passing successively from The wheels are separated from each other by partitions in the casing projecting inwardly, as shown, a slight clearance being allowed between tl e turbine wheels and the side walls 4 and 5, o these partitions.' These walls 4 and` v 5form `)etween'them closed chambers l, in

the part itions. Pipes 7 and 8, communicate from the outside, of the casing With/these. chambersonzopposite sides. The steamto,

j operate the-turbine passes through the oriolpleration. In order to' superheator re-heat t s steam in the successive' stages, live steam, or hot gases, such asproductsof combustion from-the boiler furnace, are con-l --ducted into the chambers 6 -by the pipes 7,

thereby heating thewalls of saidrchamber, which latter transmit their heat to the operating steam. The condensed steam or the gases, after the heat has been abstracted, es-

cape through the pipes 8. If the temperature of the heating vapor is too low to superheat the steam, no su er-heating will take place. The -steamwi l, however, be reheated in the turbine, thus reducing condensation.

In Fig. 2 an axial flow turbine is shownl with the invention applied thereto, The side plates of the wheels are flaring in order -to resist side pressure, conseruently the form of the casing is somewhat c anged, and the heating chambers 10, are triangular in cross section, as shown. The inletfpipes 11, andV outlet pipes 12, pass into. the chambers at points located between, the nozzle openings 13,*through whichrthe steam is guided into vthe turbine wheels. .Steam jackets A14, v15

may orl may not be employed in conjunction with the heating. 5

It will be observed that in either axial or radial flow turbines,the heating chambers are entirely. within the path Vof flow of lsteam through the. turbine; that is, in the axial iiow turbine the path of flow is of hollow cylindrical sha e, and in the radial flow turbine the path o How; is of transversely corrii'gated hollow cylindrical shape, and in both types the heatin chambers are within the bounds of the ho low cylindrically shaped path. This construction prevents radiation from the heating chambers t0 the atmosphere, the heat of the medium within the chambers passing into the working steam within Whosepath'they are located. The locus of nozzles .in each ty e is as shown, acyli'nder vand the .heating c ambers are located within this locus. v j

My invention may be applied to'any form of compound turbine, it being only necessary" partitions to provide heating chambers'in the separatingthe turbine Wheels.

Having thus described my invention, what Iclairnis:-

, 1. In a steam. turbine, chambers located 'within-the' .ath of steamiiow through the turbine, an means coacting with the vchambers for admission and exhaust of a heating medium.

2'. In a steam turbine, awheel nozzles "di rected thereon, chambers locate within the with the. Chambers for admission and exhnust vwith the chambers for admission and exhaust venes, ehmnbeijs located between the. Vaneflow, and means coacting'with the chambers fon ladmission 'and `exhaust 4efe heating niechum.

.mHANN Terminen 'mi iwri'iz. Witnesses.:

G. SCHUBRE Primes.; C. G. SPRADO..

locus of .the` nozzles, and means enacting` of a heating medium'.

3. In L steznnturbine, means fori Carrying fvan'es,- means `0n the stater'piojeeting between the Vane-carrying means, chambersl located in the pi'jecting means an'rl entirely within the steam iiow, and means enacting of n 'heating medium.. l, l v ,i

4. In n stemn turbine, means ioi Carrying.

carrying means andentirely within the steam 

